The Fern Room at the 100-year old Garfield Park Conservatory is both an historical and botanical treasure. Conceived by renowned landscape architect Jens Jensen as a “landscape under glass,” the room, shows what an Illinois landscape might have looked like millions of years ago. Jensen’s artistic stonework sets off several water features, including a Mendelssohn-inspired waterfall. The room holds more than 150 species of ferns and mosses, as well as many palm-like cycads, one of the oldest species of plants on earth.